Power protection for data centers

2 ABB | Power Protection for data centers

Power protection for data centers

data centers are major power users, with larger installa­tions consuming tens of megawatts. as customers are often highly reliant on the operation of a data center, it is critical that data is available at all times and that it is stored in a reliable and energy­efficient way. aBB’s uninterruptible power supply (UPs) systems ensure this. a reliable UPs will guarantee a flow of continuous, clean power to the data center no matter what happens on the power supply side. no critical data center operates without an effective UPs.

ABB provides a range of modular and standalone UPS solu-tions. All these UPS solutions are recognized as being at the forefront of power protection innovation and technology and are class-leading in terms of system reliability efficiency, avail-ability, scalability and flexibility – using less energy, generating less CO2, saving valuable floor space and achieving significant total cost of ownership savings – making them ideal for data center applications.

To this ABB can add a comprehensive power infrastucture such as gensets, active voltage conditioners, switchgear and power conditioning equipment to build a complete, fully matched power protection solution for each and every data center to ensure a true, no-break supply in the event of a power failure. Additionally, with Decathlon, ABB’s data center infrastructure management (DCIM), data center managers can manage their data center operations enterprise-wide through a unified view that spans mechanical, electrical and IT systems – so they can deliver services faster, in the most reliable, efficient and sustainable way possible.

Power Protection for data centers | ABB 3

Bottom cable entry

top cable entry

smart connection interface

inbuilt maintenance bypass switch

Power protection for those who need zero downtime

UPss play a vital role in ensuring it reliability. as a result, the reliability of the UPs itself is a major consideration. any time a UPs fails and becomes unavailable, mission­critical electrical loads are put at risk. the surest way to increase UPs availability is to have the correct design, use high quality components, ensure redundancy and eliminate downtime by minimizing Mttr (mean time to repair).

Availability is formally defined as:

availability = MtBf / MtBf + Mttr

MTBF (mean time between failure) and MTTR are common parameters in the UPS industry and both impact system avail-ability. Modular UPS designs minimize the system’s MTTR. ABB’s Decentralised Parallel ArchitectureTM (DPA) allows the modules to work as one system but without interdepen-dence. In the unlikely event of one UPS module failing, the overall system will continue to operate normally, but with one less module of capacity. The failed module will be fully dis-connected and will not impact the operating modules.

True, safe-swap modularity enables the safe removal and/or insertion of Conceptpower DPA modules without risk to the critical load and without the need to power down or transfer to raw mains supply. This unique feature directly addresses

today’s requirement for continuous uptime. The ability to swap modules online in a Conceptpower DPA system significantly reduces its MTTR and simplifies system upgrades. The modu-lar approach pays off too when it comes to serviceability and availability – online swapping of modules means you do not have to switch off or bypass during replacements, so there is no downtime.

This online-swap technology, along with significant reductions in repair time, can also achieve so-called six nines availability (99.9999 percent) – highly desirable for data centers in pursuit of zero downtime. Not only does this improve availability but it also reduces cost as service engineers spend less time on-site and any risks of data or production loss are minimized. Also, inventory levels of specialist spare parts are reduced.

DPA enables further fault tolerance: Each module contains all the hardware and software required for full system operation.Modules have no common components. Each UPS module has its own independent static bypass, rectifier, inverter, logic control, control panel, battery charger and batteries. With all the critical components duplicated and distributed between individual units, potential single points of failure are eliminated.

ABB’s UPSs boast the lowest cost of ownership of any UPS system by offering energy efficiency (up to 96 percent), scalability and ergonomic design to enable easy serviceability.

conceptpower dPa 500

4 ABB | Power Protection for data centers

UPS applications in data centers –server protection

In a data center, the principal mission of the UPS is to protect the servers. The UPS function can be located centrally or located beside each row of servers (“end of rack row”). A centra lized power protection concept is appropriate, in

most cases, for large data centers and a distributed power protection concept may be applicable in small data centers or large data centers with decentralized power protection demands.

1. Distributed power protection solutions for data centers – end of rack row UPS

dPa conceptpower n+1Starting with small server load

a) Servers with single power supply

b) Servers with dual power supply

dPa conceptpower n+1With increased number of modules for capacity

server racks server racks additional capacity

The power demand of one row of server racks can vary from 20 kW up to hundreds of kW. Only a modular UPS is capable of adapting to changes in power demand in a growing infrastructure.

Busbar a Busbar B

server racks

Busbar a Busbar B

server racks

Busbar a Busbar B

server racks

the building block concept permits a range of different power protection solutions for data centers. some example configurations are presented here.

Power Protection for data centers | ABB 5

2. Centralized power protection solutions for data centers – servers with dual power supply

a) Modular UPS solution for up to 3 MW

tier iV power infrastructureA sample reference scenario, 1200 kW Tier 4, illustrates one example of how ABB’s Concept-power DPA 500 can be used to create a high-perfor mance infra structure. Each system has N + 1 redundancy. The system flexibility allows upgrading or down grading power capacity as required.

scalable up to 3 MwThe system flexibility allows upgrading or downgrading power capacity. Additional modules and units can be added to make it up to 3 MW.

UPS System A 6 x 500 kW UPS System B 6 x 500 kW

LoadPDUs A

G G

PDUs B

GG

UPS System A 4 x 300 kW UPS System B 4 x 300 kW

LoadPDUs A

G G

PDUs B

GG

Standardization and modularization have revolutionized the design of power back-up systems for data centers. ABB’s UPS product range allows easy expansion of power capa-city up to 5 MW. And all by adding standard modules or UPS

units. Large and small data centers can now be built by using the same predesigned, pre-manufactured and pretested sub-systems as building blocks.

6 ABB | Power Protection for data centers

UPS applications in data centers –server protection

G

LoadLV DIST I LV DIST II

LV DIST

G

RPC

LV DIST

RPC

Low-voltage switchgear

Mechanical load and cooling Mechanical load and cooling

Low-voltage switchgear

G G GG

UPS System A 10 x 500 kW UPS System B 10 x 500 kW

LoadPDUs A

up to

10 modules

up to

10 modules

PDUs B

A medium-voltage UPS-I can be installed to protect the power supply to the entire data center, or just to protect server and mechanical loads. Installing the UPS protection at the medium-voltage level provides the most energy-efficient configuration and allows installation outside the main data center building.

Up to 10 independent UPS units (PowerWave 33) can operate in a parallel configuration, achieving a total power capacity of up to 5 MW. In all parallel configurations, each UPS unit operates independently but is synchronized

with the others. Using this scalable architecture of the PowerWave 33, a modular and fully redundant UPS system can also be easily implemented.

b) Standalone UPS solution for up to 5 MW

c) Medium-voltage UPS solution

Power Protection for data centers | ABB 7

G

Mechanical load and cooling

Low-voltageswitchgear

Option 1

Option 2

Active voltage conditioner

UPS-I

Further power protection applications in data centers

Utilities will often penalize for poor power factor caused by direct-connected motors on cooling plant, harmonics from motor drives and even some server loads and UPSs. Standard power factor correction using capacitors is difficult to apply in data centers, especially where standby generators are installed. Some server loads, particularly when heavily loaded, can cause a leading power factor, which is a particular problem for standby generators. ABB’s PCS100 RPC (reactive power conditioner) is ideal for correcting power factor and low-order harmonics in data center applications.

The reliability of mechanical plant and, in particular, cooling systems, is critical to overall data center availability. ABB has industrially rated UPSs and voltage conditioners that are suited to the difficult motor loads on these supplies.

G

AVC or UPS Mechanical load and coolingLow-voltage

switchgearLV DIST I

LV DIST

UPS-I

LOAD

1. Mechanical load protection

2. Power factor and harmonic correction

8 ABB | Power Protection for data centers

Comprehensive power protection solutions

conceptpower dPa 250/500 Powerwave 33 Pcs100 MV UPs

double­conversion online modular UPs double­conversion online standalone UPs single­conversion UPs

Power range: up to 500 kW System power range: up to 5 MW High-reliability, new generation

single-conversion design

System power range: up to 3 MW Backup time: from 5 minutes up to several hours Modular format

Backup time: from 5 minutes up to several hours Efficiency: Up to 96 % Efficiency: > 99 %

Efficiency: Up to 96 % Efficiency in eco-mode: > 99 % Small footprint

Efficiency in eco-mode: > 99 % Supercapacitor, lithium-ion and lead-acid

storage options.

Pcs100 UPs­i Pcs100 aVc Pcs100 rPc

single­conversion industrial UPs active voltage conditioner reactive power conditioner

Modular design Continuous-online Modular-redundant

Efficiency: > 99 % Fast inverter-based response Fast operation – inverter based

Small footprint Sag and surge protection Can correct leading or lagging power factor

Industrial rating System rating to 6 MVA Corrects low-order harmonics

Protects mechanical systems from outages, sags

and swells

System rating to 2 MVAr

Power Protection for data centers | ABB 9

Data center infrastructure management with Decathlon®

Decathlon® provides the tools to manage a flexible network of power, cooling and IT systems through a single operational environment for maximum reliability, energy efficiency and op-timal utilization of all data center assets. With Decathlon, data center professionals – from both IT and facilities disciplines – obtain the visibility, decision support and control technologies they need to maximize capacity and optimize their entire data center operations while reducing cost and risk. The newest version of Decathlon is the only DCIM system in the industry that tightly integrates with third-party solutions, providing maximum flexibility to meet uncompromising data denter service levels, whether completely on-premise or in the cloud.

Decathlon provides a scalable, modular solution that adapts to the data center’s operational maturity. Its open platform allows for reuse of infrastructure point-solutions to simplify migration. The above diagram illustrates the core function ality and application modules that Decathlon provides to ensure optimal performance of data center assets – including me-chanical, electrical and IT systems.

User interfaces

Externalinterfaces

Application modules

Core functionality

Monitoring and secure control

Decathlon® Aspect Directory

Web portalPortable client

Mechanical IT and O/SElectricalApplication management Other

Maintenance management

Buildingmanagement

Powermanagement

Energymanagement

Other apps

Asset and capa-city planning

Asset library

Alarm management

Remote monitoring

History and reporting

Control and automation

Command center

Decathlon® secure cloud

Global energy intelligence

10 ABB | Power Protection for data centers

Data center infrastructure management with Decathlon®

On-premise – option 1

Performance statusUnified alarmingReal-time monitoring

VisualizationDecision supportDiagnosticsReporting

Can monitor and control your entire data center.

On-premise – option 2

Secure outbound-onlydata for remote monitoringVPN3G

24 x 7 support from subject matter experts

Select the Decathlon implementation that is right for you. For example, you can choose to monitor and manage UPS and battery systems either on-premise or via the Decathlon secure cloud.

Features include:•SMS/email alerts•Secure outward-only GSM or VPN connections•Automated diagnostics•Alarm response escalation and on-site callout support•24x7 UPS subject matter expertise support

Power Protection for data centers | ABB 11

servicesA well-maintained power protection system will ensure the integrity and availability of power to critical installations, 24 hours a day, week after week, year after year without fail.

ABB offers the most comprehensive and cost-effective service available - ensuring the UPS, gensets, batteries and other complementary products of your power protection system are expertly maintained on a regular basis and are always ready and able to support your critical business load.

From initial contact, through installation, commissioning and maintenance to disposal, ABB provides its customers with an unrivalled single source for all their power protection service needs. Our wide range of services include: Initial site surveys, system design, installation and commissioning, preventative maintenance, repair, battery maintenance, replacement and testing, capacitor replacement, remote monitoring, load bank testing, witness testing, disposal.

aBB’s world of data center productsABB is a global supplier of a wide range of power and automation products and is a one-stop-shop for much of the equipment needs of a modern data center. ABB offers pro-ducts that are to be found all-the-way from the utility to the power distribution system in the data center as well as in the infrastructure control.

The breadth of our global manufacturing, local project execu-tion and service capabilities means we streamline the pur-chase process and deliver solutions to our customers through a single point of contact. ABB offers, for example, a full range of switchgear, voltage conditioning equipment, transformers, generators. ABB has a presence in every country in the world and can offer unrivalled expert service and consultancy. Please contact your local ABB representative or visit www.abb.com for more details.

Services

04-3

567

| Prin

ted

in S

witz

erla

nd, 2

013

Contact us

www.abb.com/ups www.abb.com/powerquality www.abb.com/datacenters www.abb.com/datacenters/decathlon

© Copyright 2013 ABB. All rights reserved. Specifications are subject to change without notice.